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GeoGebraGeoGebra Classroom

Similar Polygons Activity

The two figures below look similar to each other. They have the same shape but the figure on the left is a larger version of the one on the right.

Change the polygon on the right by dragging one or more of its vertices.

Click the button that says "Show angle measures." What do you notice about the measures of the corresponding angles?

Write the ratios for each pair of corresponding sides. What do you notice about the ratios?

Write a ratio comparing the perimeters of the polygons. How does this ratio compare to the ratio of the corresponding sides.